Вычислить: lim (x->-4) (scrt (x+12) -sqrt (4-x) / (x^2+2x-8)

Lim (x->-4) (scrt (x+12) -sqrt (4-x) / (x^2+2x-8)=lim (x->-4) (x+12-4+x) / (scrt (x+12)+sqrt (4-x) (x^2+2x-8)=lim (x->-4) (2x+8) / (scrt (x+12)+sqrt (4-x) (x+4) (x-2)=lim (x->-4) (2 (x+4) / (scrt (x+12)+sqrt (4-x) (x+4) (x-2)=lim (x->-4) (2) / (scrt (x+12)+sqrt (4-x) (х-2)=2/ (scrt (8)+sqrt (8) (-6)=2/ (-24scrt (2)=-1/12scrt (2)=-scrt (2) /24